I am new to CHDK. I am trying to limit the Auto ISO range.
From reading the manual, it seems that using the Custom ISO auto setting would do this.
I tried enabling Custom ISO Auto and setting Max ISO Auto to 40 and Max ISO HI to 60.
By setting this, I thought that if ISO is set to auto, it would never get set above 400
However, when I try taking photos, it will often get set to a number above 400.